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Old 08-12-2019, 08:41 AM
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Yamamaya42 Yamamaya42 is offline
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Originally Posted by trinescope View Post
+1, it's not going to work. There are no visual clues to know when the IFs are aligned, unlike in a radio where normally they are set for peak response.
I was not REALLY that serious about trying option 1, knowing that it would most likely do more harm than good.

I will most likely run it as is for now, for the distortion can be minimized by messing with fine tuning, IE,the ringing in the red DOES move when it's adjusted as does color intensity ( noise ), but the ringing never fully goes away, no matter what I try, when I input via tuner, but on the positive side, horz hold has no effect on color at all.

At this point, I still have re created the missing top cover to the IF section, tube shields are in place.
I can't really imagine the cover being off having THAT much of a drastic effect on things, I just have to find a way to have one made from the template I was given.

I just have to wonder, if I do get my hands on a sweep marker generator at some point, given the complexity of the procedure, could a noob at such a task like me do it.
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Old 08-12-2019, 09:18 AM
trinescope trinescope is offline
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Originally Posted by Yamamaya42 View Post
I just have to wonder, if I do get my hands on a sweep marker generator at some point, given the complexity of the procedure, could a noob at such a task like me do it.
As long as you have alignment equipment in proper working condition and the service data for the set I think you will do just fine. I was inexperienced once myself, and at 46 years old I did not have the benefit of having worked on these sets "back in the day" either.

I think I will have to do the alignment on my Mitsubishi Trinescope set since it displays the classic signs of misalignment; tunable ghosts and excessive hue shift with fine tuning. I will have to do this without an alignment procedure, I only have the various carrier frequencies known from the instruction manual (and they're not even the usual 45.75MHz either, I think it was 24 or 25MHz).
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Old 08-12-2019, 10:02 AM
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Yamamaya42 Yamamaya42 is offline
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As long as you have alignment equipment in proper working condition and the service data for the set I think you will do just fine. I was inexperienced once myself, and at 46 years old I did not have the benefit of having worked on these sets "back in the day" either.

I think I will have to do the alignment on my Mitsubishi Trinescope set since it displays the classic signs of misalignment; tunable ghosts and excessive hue shift with fine tuning. I will have to do this without an alignment procedure, I only have the various carrier frequencies known from the instruction manual (and they're not even the usual 45.75MHz either, I think it was 24 or 25MHz).
That's why I'm looking at the Heathkit over the B&K Precision , even though the B&K seems to be a better unit, it's useless w/o probes, which are impossible to find.
Heathkit, however even if you do not have any probes, has how to make them, and test / calibrate the unit in the manual.


"I'd make the shield before worrying about the alignment... You would be surprised some of the wacky problems removing a shield from a working set can cause."

I'll prob do that soon. Most likely seek aid from a friend who has more exp in the area, as my hands areattuned to more delicate work like soldering ( fine pitch ) and so on, and it also does not help that I have only partial use of the right hand ( De Quervain's) too many years of holding tools in the same position, like , soldering irons.
I can use the hand ( grasping and such ) for short bits of light work, and thus I was able to the TV work slowly over the months, but something like the shield would cause a flair up.
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